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Japan Weekly Snow Roundup #298
Weekly Snow News for Japan, updated 21 January 2026: Japan leads global snowfall again, with 1m (40") in 72 hours on Hokkaido and heavy, cold powder spreading into Honshu.
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Osa at 700 m altitude
Issued by Snow-Forecast.com at: 2 pm (local time) / 23 Jan 2026
Now
Fri 23 | Saturday 24 | Sunday 25 | Monday 26 | Tuesday 27 | Wednesday 28 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | | |  | |  |  |  | | | |  |  | |  | | |
light snow | mod. snow | light snow | light snow | light snow | light snow | cloudy | snow shwrs | some clouds | cloudy | light snow | cloudy | clear | some clouds | light snow | snow shwrs | light snow | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
— | 6 | 1 | — | — | — | — | — | — | — | 1 | — | — | — | 1 | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | -2 | -2 | -2 | -3 | -4 | -2 | -2 | -5 | 1 | 1 | 0 | 0 | 0 | -2 | 0 | 0 | -1 |
min °C | -3 | -3 | -2 | -4 | -5 | -4 | -5 | -6 | -1 | -2 | -3 | 0 | -2 | -3 | -1 | -2 | -3 |
-10 | -10 | -10 | -12 | -14 | -12 | -11 | -10 | -1 | -6 | -8 | -6 | -9 | -8 | -5 | -8 | -10 | |
75 | 88 | 81 | 77 | 77 | 77 | 79 | 94 | 80 | 85 | 96 | 87 | 79 | 84 | 95 | 79 | 91 | |
400 | 250 | 400 | 250 | 0 | 200 | 400 | 0 | 450 | 750 | 500 | 650 | 650 | 450 | 500 | 600 | 450 | |
 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:11 | — | — |
 | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:32 | — | — | 5:34 | — | — | 5:35 | — |
Next 0-3 days weather summary:
A light covering of new snow, mostly falling on Fri night. Freeze-thaw conditions (max 1°C on Mon morning, min -6°C on Sun night). Winds decreasing (strong winds from the WNW on Sat night, calm by Mon morning).
Next 4-6 days weather summary:
A dusting of new snow. Freeze-thaw conditions (max 1°C on Mon afternoon, min -3°C on Mon night). Winds increasing (light winds from the W on Mon afternoon, fresh winds from the WNW by Tue afternoon).
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Snow Radar
Latest snow reports near Osa:
Osa Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 8 cm |
| Last snowfall: | 22 Jan 2026 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Hiroshima are reporting: powder (0) / good piste (0)
Snow History
Week 4 of January has on average:
0.1 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.9 | Powder days Fresh snow, limited sun, any wind. |
0.6 | Bluebird days Average snow, mostly sunny, light wind. |
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Other resorts in Japan - Hiroshima are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Osa at the specific elevation of 700 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Osa. To access the weather forecasts for the other elevations, use the tab navigation above the table. For a wider view of the weather, check out the Weather Map of Japan.
Click here to read further information on freezing levels and how we forecast our temperatures.
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